Grounding methods in mission critical facilities

June 17th, 2014, Published in Articles: Energize

 

Many factors must be considered when designing the electrical system for critical facilities, such as winders on mines, not the least of which is the type of grounding system to be used. Proper grounding reduces overvoltages, improves uptime, and isolates faults.

Grounded systems offer many benefits over ungrounded systems [1, 2, 3]. When properly applied, high resistance grounding (HRG) is a specialised type of grounding that offers unique benefits in mission critical installations.

eaton-grounding-methodsAlthough once a common solution, ungrounded systems have several problems and are not recommended for most modern electrical systems [4].

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